<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>
<body>
  <div id="app">
    <p v-show="show">显示</p>
    <p v-show="22 > 11">显示</p>
    <p v-show="!show">隐藏</p>
  </div>
</body>
<script src="./lib/vue.js"></script>
<script>
  var vm = new Vue({
    el: "#app",
    data:{
      show: true
    }
  })
</script>
</html>